The document discusses climate change and its effects. It notes that the climate is defined by average atmospheric conditions in a place. The key facts presented are that global temperatures have risen about 1C since 1880, warming is occurring more quickly than expected, and the Arctic and Antarctica are warming which is causing sea level rise. Scientists agree that climate change is largely due to emissions of carbon dioxide and other greenhouse gases. The consequences of climate change include threats to fresh water supplies, ecosystems, agricultural land, forests and biodiversity as well as more extreme weather. The document urges actions like increasing renewables, efficiency, and education to help address climate change.

1. Climate changes
Dilyana Grozeva
teacher of biology and health education
Georgi Izmirliev High school, town Gorna Oryahovitsa

2. Climate:
• It is a set of meteorological elements that
characterize the average state of the
atmosphere of a place

3. Climate:

4. Climate:

5. Climate change:
• The current climate change: A stronger
than expected, sooner than anticipated
• Warming on Earth is a fact - the Earth's
surface temperatures in the 20 th century
have risen by 0,6 º C, and 90 years
proved to be the hottest decade of the
last century

6. The facts:
• Raising the temperature by 1880 to our
days with ~ 1C

7. The facts:
• Warming in the Arctic and Antarctica
and the melting ice caused sea level rise
and flooding of low fertile lands and
coasts

8. The facts:
• Change the quantity of rainfall on the
ground, leading to frequent
unpredictable floods or prolonged
droughts

9. The facts:
• Scientists are almost unanimous that
global warming is the result of emissions
of carbon dioxide and other gases –
which cause the Greenhouse Effect

10. The facts:
• A change of global temperature and
Carbon Dioxide

11. The Greenhouse Effect:
• The observations
show an increased
temperature of the
low strata of the
atmosphere in
comparison with
thermal radiation of
the planet

12. The Greenhouse Effect:
• Main greenhouse gases
Gas Contribution rates
Contribution rates 55%
Carbon dioxide 39%
Ozone 2%
Methane 2%
Nitrogenous oxide 2%

13. Concentrations of greenhouse
gases in the atmosphere:

14. Major sources of emissions:

15. The consequences:
• Running out of the stock of fresh water
• Destruction of ecosystems and loss of
biodiversity
• Reduction of volume and productivity of
arable land
• Destruction of forests due to fires because of
drought and high temperatures
• Increasing of deserts and melting of mountain
glaciers
• Global climate change has an impact on
human health

16. The consequences:
• Rising of the level of the World ocean (at an
average 0.2cm /year)
• Earthquakes
• Fires
• And more,
and more …

17. The near future of Bulgaria…
• Desertification of arable agricultural
land
• Very high risk of flooding caused by the
rapid melting of mountain snow
• Sharp increase in fires and almost
complete destruction of Bulgarian forest
• Emergence and spread of new diseases
and pests to our region
• And more, and more…

18. What is being done globally:
• Increasing the share of renewables
• Reducing the harmful emissions
• Increasing energy efficiency
• Collaboration

19. How to help?
• Remember: Everyone is part of the solution!!!
• Use energy saving lamps
• Recycle
• Turn off the lights that you don’t use
• Maximize your home heating - use insulations
• Switch off electrical appliances from the
‘on’/’off’ button
• Use environmentally friendly transport
• Use rechargeable batteries

20. How to help?
• Try to use renewable energy
• Make sure that your new appliance is energy
class A or A+
• Announce against deforestation
• Explain all this to your friends
• Plant a tree

21. Together we will succeedTogether we will succeed !!!!!!
In preparing the presentation materials are used by www.google.bg